From 922a3a43db246ae8d793d0bdedef5f619841710d Mon Sep 17 00:00:00 2001
From: Vitali Pinchuk <vit.pinchuck@gmail.com>
Date: Thu, 8 Feb 2024 13:04:32 +0300
Subject: [PATCH] fixed - prevent add existed items

---
 .../DatasetEditor/DatasetEditor.tsx           | 26 +++++++++++--------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/src/components/DatasetEditor/DatasetEditor.tsx b/src/components/DatasetEditor/DatasetEditor.tsx
index 0602c4a..71b5777 100644
--- a/src/components/DatasetEditor/DatasetEditor.tsx
+++ b/src/components/DatasetEditor/DatasetEditor.tsx
@@ -99,17 +99,21 @@ export const DatasetEditor: React.FC<Props> = ({ value, onChange, data }) => {
    * Available Field Options
    */
   const availableFieldOptions = useMemo(() => {
-    return data.reduce((acc: SelectableValue[], dataFrame) => {
-      return acc.concat(
-        dataFrame.fields.map((field) => ({
-          value: `${dataFrame.refId}:${field.name}`,
-          fieldName: field.name,
-          label: `${dataFrame.refId ? `${dataFrame.refId}:` : ''}${field.name}`,
-          source: dataFrame.refId,
-        }))
-      );
-    }, []);
-  }, [data]);
+    return data
+      .reduce((acc: SelectableValue[], dataFrame) => {
+        return acc.concat(
+          dataFrame.fields.map((field) => ({
+            value: `${dataFrame.refId}:${field.name}`,
+            fieldName: field.name,
+            label: `${dataFrame.refId ? `${dataFrame.refId}:` : ''}${field.name}`,
+            source: dataFrame.refId,
+          }))
+        );
+      }, [])
+      .filter((field) => {
+        return !items.find((item) => item.name === field.fieldName && item.source === field.source);
+      });
+  }, [items, data]);
 
   /**
    * Add New Item